Spray nozzle



Oct. 19 1926.

G. 5. CHILDS SPRAY NOZZLE Filed Nov. 1925 1 'vide an improved spraynozzle embodying to which it is'directed."

V e-sufficient length to permit thespr ay to be I faces conveniently andv without the necessity I, the other, so that th y Patented Oct. 19, 1926. f

eUsrAv e. CHI D'S; or s'r. "LoUIs,""1v IIsso UB1, AssIGnoR To BREcK ENGINEEBiNG s me Q I- PQUIS S QU L: v wees-ems 11559? I SPRAY Application and November This invention relates to improvements in spraynozzlesl v V 1' An; object of the invention is to provide. sin-improved spray, nozzle including a' spray: head" for. receiving" waterf from';{a,pi pe, an air. inlet in direct communication'with the pipe, a water inlet openingintogthe pipe at anangletotheairinlet; and; means for? conveniently vary-ing the relative; amounts" of; air and water passing into-the pipe,

7 Another'object'ofthe inventionis to pro 7 the, construction "mentioned" and designed V andfadaptedfor use .in spraying polished surfaces, and including means forconfining thespray to: restricted areas ofthe surfaces Another object' of the invention isto provide a device of the character mentioned 0 having" a relatively 'rigid' handle portion of directedto all points of relatively large surof frequent change of position by the ope r ator,"' Other objects will 'ing description, refe drawing in which e F 1 is an elevation spray nozzle. 1

' deelevation'with parts shown appear from the follow-- rence being "made to the for any desired purpose. r

. :A relatively'large elastic cup GLOfrubber l or similar vnon-abrasive?elastic material enl,

closes the'spray head' eiand confines the j 1 spray to an areaabout thesize'of the inside 5- of the cup; The bottom of the cup has a [thickened part- 7 f providedv with a hole j through which the pipe 3 extends." A nut is screwed on the pipe 3 and constitutes I zle so that whenfin ferablyi p revided with an enlarged hand- I oi'alumlnurn or other lighti'materiall tion with a water hose.

i The actionot the" sp nozzjnn 9,1923. Serial No, 73,67 means for clamping? the cup against the noz} in:properlassembl'y.1 a ,As-the pipe lis relativel want,

1 The air and water inlet device may be -in" theiform shownfcomprising a tubular part '10 and a branch tubularjpart" 11 united with an enlargement 12-into whichjthe' eiidr'of I the pipe'l screws; "The tubular part- 'lfi is provided {with a 'valve,13, andthe tubular part 11 is provided with, a similar valve 14:,

use then-parts are *lield' said valvesbeing adjacently disposed so that they may be readily Irianiplll ted 'byi' the amounts of air and water vpassing there-f I throughfor dischargev through the nozzle.

same hand to control andvaryrelatively the p v I I Each of the'tubes 10 and 11 is provided with A It is preferable to admit air sure'through the tubefll; and water through *the tube v10.;theair 'entering'theline at an angle Iso that'the; air will I break up" the appropriateportions 15, one'ior conne'ction I v c with the air hose and the other-for connec-. I

vWater anddischarge itthrough thefholesi 5 "in the form of a fine spray,- the finenessliof which maybe varied as desired by varying the relative amountsof water andkair. The

relationship of the parts to obtain this result t 1 is, an'imp'ortant feature of the present finven' tion for in using the device :to wash highly polished surfaces, such as" the surfaces of;

automobiles; it: is desirable to avoid scratching'such surfaces.-,This may be avoidedby manipulatingthe valves. 13' and 14 to "dis charge relatively small quantities of waterv in the form of afine spray While in Washing surfaces where 'ahigh degree ofv caresis' not required' fa greater-volume of water mayibe V. 2' admitted and discharged in i the form of j ets. The fine spray discharged through the e zlefand confined ;by.the'cu 6 dissolves the dirt and remOVesI it withoutmarringthe polished surfaces; such and slowly effe tiv Wardly diverging holes in the spray head,

the holes being arranged radially so that a rota'ryor' whirlingaction of-theseve'ral jets meet the surface being washedatan'oblique action beihgv ntliyru j, 4

7 angle, thus avoidingthe driving of the grit length for convenient manipulation over the,

surface and even over the top 01: an automobile, so that it is unnecessaryv for the operator to lean upon or otherwise place his Weight upon the top of'the vehicle as by so doing it has oftenocc-urred that the top "has been broken or bent. This undesirable re sult maybe avoided by the present device which also makes it unnecessary for the operator to rub :the'polished surface. It desired the edge of the'cup may be'used for the purpose'of gently rubbing the surface after the dirt has been dissolved and washed away by the spray. i

I am aware that the device may be varied as to its construction and otherwise without departure from the nature and principle of the invention, and I do not restrict myself unessentially in these or other particulars, but What I claim and desire to secure by Let- .t Patent is i A spray nozzle adapted for use in washing polished surfaces of automobiles and the like,v comprising an elongated pipe section for supplying the cleaning fluid, a discharge nozzle'set at an anglefin respect to said pipe section, a semi-spherical head for the nozzle having a plurality of spray openings therethrough, said openings diverging outwardly in radial direction in respect'to said nozzlehead, an elastic cupj device-havin a concave inner surface, the walls ofwhicl extend substant ally-loeyond the head of the.

spraynozzle, and means for admittingiair v and cleaning/fluid said J elongated pipe section.

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